From: Janosch Frank <frankja@xxxxxxxxxxxxxxxxxx> Diag224 requires a page-aligned 4k buffer to store the name table into. kmalloc does not guarantee page alignment, hence we replace it with __get_free_page for the buffer allocation. Cc: stable@xxxxxxxxxxxxxxx # v4.8+ Reported-by: Michael Holzheu <holzheu@xxxxxxxxxxxxxxxxxx> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxxxxxxx> Reviewed-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> --- arch/s390/kvm/sthyi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/s390/kvm/sthyi.c b/arch/s390/kvm/sthyi.c index bd98b7d..05c98bb 100644 --- a/arch/s390/kvm/sthyi.c +++ b/arch/s390/kvm/sthyi.c @@ -315,7 +315,7 @@ static void fill_diag(struct sthyi_sctns *sctns) if (r < 0) goto out; - diag224_buf = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); + diag224_buf = (void *)__get_free_page(GFP_KERNEL | GFP_DMA); if (!diag224_buf || diag224(diag224_buf)) goto out; @@ -378,7 +378,7 @@ static void fill_diag(struct sthyi_sctns *sctns) sctns->par.infpval1 |= PAR_WGHT_VLD; out: - kfree(diag224_buf); + free_page((unsigned long)diag224_buf); vfree(diag204_buf); } -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
